Improvement in feed-water heaters



S. H. GILMAN. Feed Water Heater.

No. 196,292. l Patented oct. 23,1877. 227/.

N, PETERS. PHOTO-LITHOGRAF'HER, WASNXNGTNv D C.

` SAMUEL H. GILMAN, OF NEW ORLEANS, LOUISIANA.

IMPROVEMENT IN FEED-WATER HEATERS.

Specification forming-part of Letters Patent No. l96,7292, dated October 23, 1877 5 application flled June 14, 1877,

To all whom it may concern:

Be it known that I, SAMUEL H. G1LMAN,-of New Orleans, in the county of Orleans and State of Louisiana, h ave invented a new and useful Improvement in Feed-'Water Heaters, which improvement is fully set forth in the following specification and accompanying drawings, in which latter- Figure l is a top view and partial section of my improved feed-water heater. Fig. 2 is an elevation and partial section of the same, and Fig. 3 is an enlarged detailed sectional view of the. main operating-valve.

rPhe nature of my invention consists in certain constructions, combinations, and arrangements of parts, hereinafter fully described and speciiically claimed, whereby a feed water heater is produced which heats the feed-water of a steam-press or other machinery driven by steam, by utilizing a part of the exhaust steam.

under a certain pressure obtained by means of the impetus of the exhaust steam upon a checkvalve at the moment it begins to leave the workin g cylinder without -creating back pressure upon the engine.

By my invention, the pressure of the steam escaping from the steam-press after having done its -work is transferred to and retained in a cylindrical vessel, through which the water fromthe feed-pump or injector ispassed inpipes 'before entering the boiler, and thus the feedwater is exposed to a temperature correspond- 'ing to the pressure of steam in the heater, which pressure of steam in the heater 1 transfer from the exhaust of the steam-press through the agency and by the force of the momentum acquired by the steam in its escape, and without any appreciable increase of back pressure.

In the drawings, I represents the valve-chamber of .a steam-press patented to me May 30, 1876, and numbered 178,139, for pressing cotton-bales.

The fresh steam is supplied through a pipe, J, and enters a compartment, J1, from which a puppet-valve, j, operated by a hand-lever, K, admits it into a compartment, J z, whence a pipe, L, conducts it to the main cylinder of the press. The exhaust-pipe M conducts the exhaust steam from the cylinder to the compartment N, which is closed by a puppet-valve, a, operated by the hand-lever K. Through the valve n (which` answers to the exhaust-port of a steam-engine) the steam enters the compartment N andthe therewith-connected compartment O, which is provided with three puppetvalves, o o1 o2, of equal diameter and weight. The exhaust steam lifts the valves o 01.02, and enters their respective upper compartments P P1 P2. From compartment l? the pipe H2 conducts the exhaust steam to the reversing-cylinder. From compartment P1 the pipe Hl conducts the steam to the jacket of the main cylinder; and from compartment P2 the pipe H conducts the steam to the chamber E, whence the pipe G conducts it to the heater A. The heater A has the shape of a boiler, which boiler is of suitable dimensions, and it contains a set of vertical pipe-coils, B, of ordinary construction, arranged horizontally next to each other, so that their upper and lower end parts b b1 run in the same direction through the head A of the heater. The upper ends b are connected with a transverse drum, G, and the lower ends b1 with a transverse drum, C. The upper ends b are or maybe provided with valves or cocks b2, to cut off the circulation of the water when the demand for it is small, or when a coil is out of order.

The fresh feed-water is introduced into the lower drum C through a feed-pipe, el, from a pump, injector, or other suitable means. From the drum C the water passes through the pipes b1 into the coils B, thence, through the pipes b into the upper drum C, wherein it arrives heated to a proper degree, and from where a pipe, c,

` conducts it to the steam-boiler close by.

There is a twofold advantage in the described construction, viz., the feed-water, being heated between the pump and the boiler, does not lose any of its heat by radiation, as it would by passing through a pump after being heated. The water passes through the pump with a cold temperature and free from steam, and the valves of the pump are thereby caused to act freely at all times.

I prefer to provide the upper drum G with a thermometer, c2, and the heater A with a manometer or steam-gage, a, which serve as guides for the adjustment of the stop-cocks b2, in order to obtain the highest degree of heat for the feed-water.

The lower part of the heater A is provided witha drain-pipe, c1, which has a cock, a, whereby the condensed steam or steam-water is from time to time withdrawn, and which cock must be opened to admit water or air into the heater, in order to prevent its collapse by the pressure ofthe cuter atmosphere when the boiler becomes cool. 4 v

In the drawings a pipe, D, is shown connected with the pipe H, which pipe l) may serve as an exhaust-pipe from another steamj press, or a steam-engine, or a steam-pump.

As the valve o2 and compartment could not well be attached to the cylin :ler or steam-chest of a steamengine or steamq ump, I substitute the valve c2 bya similar valve, F, at some suit able place between the said engine or pump in a chamber, E', which has a contraction, c, servingl as guide to the lieg crlower cylin hicall part of thevalve F, and also containing the valve-seat lThe valve F is provided with an upper spindie, j, which passes through a cross-bai, f, in the chamber E', `and serves` 1s a central guide of the valve, while the said cross-bar c sei ves as a stop;V rlhe lower part of the valve F has a number ofy openings, f2, through which the steam passes up into the chamber E. lhe contracted part c is connected with a lower chamber, E, which surrounds the upper end cf the pipe D centrally, aiibrding sufcient space aroundit for ccllectin waste steam.. A pipe, l5, conducts the said waste steam into the air outside of the building. conducts the steam from the chamber E to the heater A.

In using this combined arrangement it will be necessary to apply a stop-cock, Q, to the pipe H, and another one, Q, tothe pipe D. This enables the operator to make use of the exhaust'steam of one or more steam-presses t Q, while the valve Q J valve F lifted by the rst rush or impetus of lthe exhaust steam of the steam-engine or 2 a press, and therewith, all

for heating the feed-water by closing the valve would have to be closed when the exhaust of a steam-engine or steampump is used, in order tc keep the waste steam from entering the pipe H and chamber P2.

When the exhaust steam of a steam-engine or steam-pmnp is used, the eccentric of the steam-engine or the tappet of the steampump serves the same purpose which the hand-lever K serves :in thev steampress; and as the valve 02 is lifted by the iirst rush or impetus of the exhaust steam of the steam-press, so is the steam-pump.

Having described my inyention, whatI claim isl. The combination of the exhaust-passage M ci' a steamengine, the steam-heating chain ber A, water-circulating pipes B, check-valve located between the chamber A and the exhaust-pipe, and arranged inl a chamber which is in communication with the chamber A and with the atmosphere, the valve-chamber I of the valves and pipes connected substantially as and for the purpose described.

2. (Dhambei- I, having the valves o o1 o2 and The pipe G i plication `for provided with connecting-pipes, as described,

in combinati engine, av che VA B,- substantially as described'.

vWitness my hand in the matter of my ap- L patent for improved methcd'of heating the feed-water cf steam-boilers.

SAMUEL HIDDEN G-ILMAN.

on with the exhaust-pipe of an k-valve, and a'feedwater heater,

Guns. 

